package com.kurtphpr.sistema.util;

import java.io.IOException;

import javax.servlet.Filter;
import javax.servlet.FilterChain;
import javax.servlet.FilterConfig;
import javax.servlet.ServletException;
import javax.servlet.ServletRequest;
import javax.servlet.ServletResponse;

import org.hibernate.SessionFactory;

import com.kurtphpr.sistema.vendas.HibernateUtil;


public class ConexaoHibernateFilter implements Filter {
private SessionFactory sf;
	
	@Override
	public void destroy() {
		// TODO Auto-generated method stub
		
	}

	@Override
	public void doFilter(ServletRequest servletFilter, ServletResponse servletResponse,
			FilterChain chain) throws IOException, ServletException {
			try{
		
		this.sf.getCurrentSession().beginTransaction();
		chain.doFilter(servletFilter, servletResponse);
		this.sf.getCurrentSession().getTransaction().commit();
		this.sf.getCurrentSession().close();
	} catch(Throwable ex){
		try{
			if(this.sf.getCurrentSession().getTransaction().isActive()){
				sf.getCurrentSession().getTransaction().rollback();
			}
		}catch(Throwable t)
		{
			t.printStackTrace();
		}
		throw new ServletException();
		
	}
		
	   }          public void init(FilterConfig conf)
			   throws ServletException {  
		   this.sf = HibernateUtil.getSession();         }  } 